Ratios, Rates, and Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or cost per item.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, such as 60 miles per hour (60 miles in 1 hour).

Front

How do you calculate the cost per ounce of a package?

Back

To calculate the cost per ounce, divide the total cost of the package by the number of ounces in the package.

Front

If a 12-ounce package of rice costs $6, what is the cost per ounce?

Back

The cost per ounce is $6 ÷ 12 ounces = $0.50 per ounce.

Front

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If Company A charges $120 for 10 uniforms, what is the cost per uniform?

Back

The cost per uniform is $120 ÷ 10 = $12 per uniform.

Front

What does it mean if two packages have the same cost per ounce?

Back

It means that the cost efficiency of both packages is equal, and you would pay the same amount for each ounce regardless of the package size.

Front

How can you determine which car has better fuel efficiency?

Back

Compare the distance each car can travel on one gallon of gas; the car that travels further has better fuel efficiency.

Front

If the Blue Car travels 30 miles on 1 gallon of gas and the Silver Car travels 40 miles, which car is more fuel efficient?

Back

The Silver Car is more fuel efficient because it travels further on the same amount of gas.